Science Question Answer (2 Marks)

Reducing, reusing and recycling are important because they decrease the amount of waste on the planet and preserve natural resources by maintaining space and cutting down on landfills. Reducing, reusing and recycling reduce consumption of new materials and save energy.

Biodiversity: The variety of plant and animal life in the world or in a particular habitat, a high level of which is usually considered being important and desirable.

The consequences of deforestation is a loss of biodiversity. Deforestation also increases greenhouse gas emissions, disrupts the water cycle, increases soil erosion and decreases the natural beauty of an area.

The protected forests are not safe for wild animals because the people from adjacent areas use natural forests resource to fulfil their needs. The smugglers kill animals for money and also set forest on fire to eliminate technology to safeguard animals.

1. The endangered species are on the verge of vanishing from earth if proper measures and protection rules will not be implemented along with provision of breeding grounds and natural habitats.
2. Extinct species have died out due to change in weather and habitat. They have also been wiped out due to irrational human activities like hunting, agricultural land clearance and wildfires.

Species having relatively small ranges are called endemic species. On remote oceanic islands, almost all the native species are endemic.

1. The endemic ‘fauna’ animal species are chinkara and nilgai.
2. The endemic ‘flora’ plant species are Acacia nilotica and Anogeissus latifolia.

The Desertification is a land degradation in which relatively dry area of land becomes increasingly arid, typically losing its bodies of water and vegetation and wildlife.
Agriculture, animal husbandry, and groundwater pumping/depletion, are all significant contributors to the process.

The rock painting found in rock shelters of Satpura National Park depict about the Bhimbetka caves one of the oldest known human habitations, dating back to some 10,000 years ago. These caves have paintings dating back from various periods during which they would have been inhabited. So, they depict the historical importance of old era.

1. Flora refers to plants.
2. Fauna refers to animals.

The objects of historical importance known as rock shelters are found inside this park. These rock shelters are the evidence of prehistoric human life in this jungle. It gives a clue about the life of the primitive people who lived in this area long ago. 55 rock shelters have been identified in this area.

Sal flora, Arjun flora, Teak flora, Fern flora, Mango flora, Leopard Fauna, Blue bull Fauna, Deer Fauna, Wolf Fauna.

The biosphere is the global ecological system integrating and comprising all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere and atmosphere.

We can reuse paper in different ways. Here, we are writing some of the common ways to reuse the paper.

1. We can make greeting cards from the used papers.
2. We can make a wall art from used papers.
3. Newspaper or old wrapping paper can be used as package padding- shred, crumple or tear and eliminate the need for Styrofoam!

Reducing, reusing and recycling are important because they decrease the amount of waste on the planet and preserve natural resources by maintaining space and cutting down on landfills. Reducing, reusing and recycling reduce consumption of new materials and save energy.

The two man made causes of deforestation are land required for agriculture and urbanisation.
The two natural cause of deforestation are flood and wildfire.

1. An "extinct species" is a species of organism that can no longer be found in the wild or in captivity.
2. The example of extinct species are Dinosaur and Dodo.

1. Asiatic lion (Panthera leo persica).
2. Bengal tiger (Panthera tigris tigris).
3. Blue whale (Balaenoptera musculus).
4. Banteng (Bos javanicus).
5. Central Kashmir vole (Alticola montosa).

Ecosystem: An ecosystem is a community of living organisms with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are linked through nutrient cycles and energy flows.

The word "flora" is used to discuss plant life, while the word "fauna" refers to animal life.

1. Flora in Pachmarhi is Mango and silver ferns.
2. Fauna in pachmarhi is Tiger and wild boar.

Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. the gas responsible for causing global warming is carbon dioxide.

The two bird sanctuaries are Atapaka Bird sanctuary and Nelapattu Bird Sanctuary in Andhra Pradesh.

1. Recycled tote bags.
2. Recycled paper vase.
3. Recycled gift tags.
4. Recycled paper bags and decoration items.

The above-mentioned items can be recycled and reused. It saves the trees from cutting down and also leads to minimal expenditure.

The correct answer is IUCN Red list:The IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species.

Some of the wild animals found in satpura National park are Tiger and Leopard. The two animals that have vanished from satpura national park are Indian white buffalo and swamp deer.

Siberian cranes comes to India during winter because in Siberia, it is cold, daylight is of shorter duration, food is scarce. So they look for better living conditions else where to rear their young ones and to come to India as it has favourable conditions for their survival.

The answer to deforestation is Afforestation. It is the establishment of a forest or stand of trees in an area where there was no previous tree cover.
Reforestation is another answer to deforestation that means the reestablishment of forest cover, either naturally (by natural seeding, coppice, or root suckers) or artificially (by direct seeding or planting).